51633992 has 16 divisors (see below), whose sum is σ = 96891900. Its totient is φ = 25796160.

The previous prime is 51633991. The next prime is 51634061. The reversal of 51633992 is 29933615.

It can be written as a sum of positive squares in 2 ways, for example, as 51179716 + 454276 = 7154^2 + 674^2 .

It is not an unprimeable number, because it can be changed into a prime (51633991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14642 + ... + 17822.

Almost surely, 2^51633992 is an apocalyptic number.

It is an amenable number.

51633992 is a deficient number, since it is larger than the sum of its proper divisors (45257908).

51633992 is a wasteful number, since it uses less digits than its factorization.

51633992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5216 (or 5212 counting only the distinct ones).

The product of its digits is 43740, while the sum is 38.

The square root of 51633992 is about 7185.6796477438. The cubic root of 51633992 is about 372.3733293004.

It can be divided in two parts, 51633 and 992, that added together give a palindrome (52625).

The spelling of 51633992 in words is "fifty-one million, six hundred thirty-three thousand, nine hundred ninety-two".